Question

Find three rational no. B/w 3/5 & 7/8

Where is video. 

• Cos a=-3/5.Then find cosec a cot a/sec a - tan a

Find the value of k if x =1 and Y = 1 is the solution of linear equation 5 x + 2 K Y is equal to 3 K

Find the value of tanpie/8

sin(tan^-1(-5/12))

if Sin 63 minus theta is equal to 1 by sec K by 2 + theta find the value of k ?      *(pls fast )*

Locate root 5 and - root 5 on number line